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Pesticide for killing aphides and preparation method thereof

A pesticide and aphid technology, applied in the field of natural plant applications, can solve problems such as hindering human production activities and easily causing damage to human skin, and achieve the effect of good pest control effect, low cost, and low production cost

Active Publication Date: 2014-03-12
江苏稼穑化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, because of its barbs, it is easy to cause damage to human skin, and it will also hinder human production activities.
[0008] Sedge, star grass, mugwort, and humulus are widely used at present, and the combination of the four to prepare pesticides for killing aphids has not been reported yet.

Method used

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  • Pesticide for killing aphides and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0032] A pesticide for killing aphids, the pesticide is made of the following raw materials: 10 kg of sedge, 10 kg of star grass, 10 kg of mugwort leaves, and 10 kg of humulus.

[0033] (1) Grind sedge, star grass and mugwort leaves into 20 meshes, put them into an extraction tank, add water to it according to the ratio of 1 liter of water per 120 g of raw materials, heat and reflux for 1.5 hours, and filter to obtain medicinal residues A and Reflux extract A';

[0034] (2) Put medicinal dregs A and humulus pulverized into 20 meshes into an extraction tank, add water to it at a ratio of 1 liter of water per 200 g of raw material medicine, heat and extract for 1.5 hours, filter, and concentrate the filtrate to the total 50% of the amount of medicinal solution, add ethanol to a concentration of 75%, precipitate for 10 hours, filter, and the filtrate is used as a medicinal extract for subsequent use;

[0035] (3) Mix the reflux extract A' obtained in step (1) and the drug extrac...

Embodiment 2

[0037] A pesticide for killing aphids, which is made of the following raw materials: 9 kg of sedge, 11 kg of star grass, 9 kg of mugwort leaves, and 11 kg of humulus.

[0038] (1) Grind sedge, star grass and Artemisia argyi into 10 meshes, put them into an extraction tank, add water to it according to the ratio of 1 liter of water per 120 g of raw materials, heat and reflux for 1 hour, filter to obtain medicinal residues A and Reflux extract A';

[0039] (2) Put the dregs A and the Humulus chinensis crushed into 10 mesh into the extraction tank, add water to it according to the ratio of 1 liter of water per 200g of raw material medicine, heat and extract for 2 hours, filter, and concentrate the filtrate to the total 50% of the amount of medicinal solution, add ethanol to a concentration of 72%, precipitate for 8 hours, filter, and the filtrate is used as a medicinal extract for subsequent use;

[0040] (3) Mix the reflux extract A' obtained in step (1) and the drug extract ob...

Embodiment 3

[0042] A pesticide for killing aphids, the pesticide is made of the following raw materials: sedge 11kg, star grass 9kg, mugwort 11kg, humulus 9kg.

[0043] (1) Crush sedge, star grass and Artemisia argyi into 20 meshes, put them in an extraction tank, add water to it at a ratio of 1 liter of water per 120 g of raw materials, heat and reflux for 2 hours, filter to obtain medicinal residues A and Reflux extract A';

[0044] (2) Put the dregs A and the Humulus chinensis crushed into 20 meshes into the extraction tank, add water to it according to the ratio of 1 liter of water per 200g of raw material medicine, heat and extract for 1 hour, filter, and concentrate the filtrate to the total 50% of the amount of the drug solution, add ethanol to a concentration of 78%, precipitate for 12 hours, filter, and the filtrate is used as a drug extract for subsequent use;

[0045] (3) Mix the reflux extract A' obtained in step (1) and the drug extract obtained in step (2) at a ratio of 1:1...

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Abstract

The invention belongs to the technical field of natural plant application, and in particular relates to a pesticide for killing aphides and a preparation method thereof. The pesticide is prepared from pure natural plants. The pesticide is prepared from the following raw material herbs in part by weight: 8-12 parts of nutgrass flatsedge, 8-12 parts of puccinellia tenuiflora, 8-12 parts of folium artemisiae argyi and 8-12 parts of scandent hop. The preparation method of the pesticide for killing aphides comprises the following steps: extracting, separating and concentrating nutgrass flatsedge, puccinellia tenuiflora, folium artemisiae argyi and scandent hop and compatibly applying to obtain the environment-friendly natural green pesticide which has low aphis drug resistance, good effect of preventing and controlling pest, no environmental pollution and no residue.

Description

technical field [0001] The invention belongs to the technical field of natural plant application, and in particular relates to a pesticide for killing aphids prepared from pure natural plants and a preparation method thereof. Background technique [0002] Aphids [Myzus persicae (Sulzer), Aphis gossypii Glover, Brevicorynebrassicae (L.), Lipaphis erysimi (Kaltenbach), etc.], spider mites [Tetranychuscinnabarinus (Boiduval), T. . truncates Ehara and two-spotted spider mite T. urticae Koch, etc.] are the main pests that harm melon and vegetable crops. With the global warming and the continuous expansion of the cultivated area in protected areas, the damage caused by them is serious year by year. First of all, high temperature can increase the number of occurrence bases and increase the number of occurrence generations, and the protected area becomes a place for a large number of pests to overwinter and reproduce in winter. Secondly, in protected cultivation, the natural enem...

Claims

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Application Information

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IPC IPC(8): A01N65/44A01P7/04
Inventor 孙红梅宋科徐慧岩蔡元春
Owner 江苏稼穑化学有限公司
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